Door stop



June 26, 1951 w. E. JEWELL, JR.

DOOR STOP 2 Sheets-Sheet 1 Filed Sept. 24, 1948 INVENTOR ilflzzmflcfmllefr ATTORNEYS,

June 26, 1951 w. E. JEWELL, JR

DOOR STOP 2 Sheets-Sheet 2 Filed Sept. 24, 1948' INVENTOR Patented June 26, 1951 DOOR STOP William E. 'J'ewell,'Jr., Philadelphia, Pa., assignor to Engineering Servic partnership e, Philadelphia, Pa., a

Application September 24, 1948, Serial No. 50,995

2 Claims.

The present invention relates to door stops.

A purpose of the invention is to provide a door stop which has adequate provision for absorbing the shock of bumping of the door without interference by door retaining parts when used merely as a bumper, while at the same time provision for retaining the door is always available for use when desired. I

A further purpose is to eliminate the complexity and expense previously incident to construction of combined door bumpers anddoor retaining devices.

A further purpose is to permit the operation of a door stop in any of a wide variety of vertical and circumferential positions with respect to the door without modification of thedesign.

A further purpose is to moveithe door engaging hook into a position behind and preferably surrounding the bumper when the bumper alone is in use.

Further purposes appear in the specification and in the claims. In the drawings I have chosen to illustrate a few only of the embodiments in which my invention may appear, choosing the forms shown from the standpoints of convenience in illustration, satisfactory operation and clear demonstation of the principles involved.

Figures 1 to 4 inclusive illustrate the preferred embodiment of the invention.

Figure 1 is a perspective showing the hook in door retaining position, with the position of the door indicated.

Figure 2 is a top plan view showing the hook in retracted position, with dot-and-dash lines illustrating the position taken by the hook in retaining the door.

Figure 3 is a side elevation of Figure 2.

Figure 4 is an end elevation of Figure 2, illustrating the hook in retracted position.

Figures 5 to 8 inclusive illustrate a variation of the invention.

Figure 5 is a perspective showing the hook in door retaining position, with the door located on the view.

Figure 6 is a top plan view with the in retracted position, but illustrating in dot-and-dash lines the position taken by the hook in door retaining position.

Figure '7 is a side elevation of Figure 6.

Figure 8 is an end elevation of Figure 6, with the hook in retracted position.

In the drawings like numerals refer to like parts.

Describing in illustration but not in limitation, and referring to the drawings:

In the prior art numerous devices have been designed which are intended to perform the combined functions of door bumpers and door' re taining devices. Many of these have been very complicated and in some cases they have required special modification of the door itself; I

The present invention is intended to supply the need for a device of this kind without employing the complexity previously found, and without the necessity of modifying the door in any way. A minimum of parts are employed, and projecting elements which are likely to catch in clothing or the like have been largely eliminated.

With minor change, the door stop can be mounted either on the base board or wall, or other vertical surface, on the one hand, or on the floor or other horizontal surface, on the other hand. Figures 1 to 4 inclusive illustrate the device intended for mounting on a vertical surface. A support 20, suitably a casting of any suitable material, such as iron, steel, brass, bronze, aluminum or magnesium alloys, is provided with a base 2|, a body 22 and-a head 23'. The base is provided with screw holes 24 for mounting screws 25 to secure the base to a vertical surface such as the baseboard or the wall.

The head 23 has a centrally located flange 26 which faces toward the side of the door, and toward the door of the flange carries a resilient bumper 21 suitably of rubber or synthetic rubber (Buna S, Buna N, polychloroprene (Neoprene or Thiokol). The resilient bumper may be secured to the flange in any suitable manner, as by engagement in a recess or over a knob, or by cementing, as well known in door bumpers. At one side of the bumper, and behind the bumper face so as not to engage the door, a pivot boss 28 is located. Through the boss in a vertical direction extends a pivot hole 30 on which is pivotally mounted a retaining hook 31. The retaining hook has a hook end 32 for engaging the door, has U-shaped arms 33 extending over the end of the door in active position, and has inwardly bent pivot ends 34 extending into the pivot opening 30. Thus in retracted position the hook effectively lies behind the face of and surrounds the bumper, being entirely out of the way, as shown in full lines in Figures 2, 3 and 4.

A torsion spring 35 surrounds the ends 34 of the hook and urges the hook toward retracted position. Ends of the spring engage the arms 33 and an intermediate portion engages the boss 28.

It will be evident that the device of Figures 1 to 4 can be shifted from right to left hand operation by simply rotating it on the axis of the body degrees 50 as to place the pivot boss at the opposite side. However, an auxiliary pivot boss 28' is provided on the Opposite side of the device, which serves to balance the structure and which permits reversing of the door stop by springing the pivot ends of the hook out of the pivot opening of the boss 28 and inserting them in a similar opening in the boss 28. The boss 23 need not be drilled unless this feature is desirable. In Figures 5 to 8, the device cannot be turned over to reverse, and in that case the auxiliary boss is more important. In operation, the device is mounted by screwing the base to the baseboard or other vertical surface. The position is selected to cause the pivot boss 28 to lie slightly beyond the door in its open position against the bumper, so that the bumper engages the door 36 as shown in Figures 1, 2 and 3. In normal operation the hook will In case of abnormal variation in the thickness of the door, the shape of the hook can be bent by the user to accommodate doors of difierent thicknesses.

remain retracted behind the face of the bumper so that the bumper will operate, but the door will not be retained. When it is desired to retain the door, it is merely necessary to swing the hook with the hand or foot beyond the retaining position as shown in solid lines in Figure 1 and in dot and-dash lines in Figures 2 and 3, and then swing the door to engage the bumper, next permitting the hook under the spring action toengage the opposite side and end of the door. The door is thus eifectively held until it is released by moving the hook clock-wise in Figure 2.

The open interior construction of the hook makes it very desirable to use wire or rod to form this member, but it will be understood that it can be produced in any suitable manner.

Where the door is not to swing open grees, due to an angle in the wall, it is still possible to use the form of Figures 1 to 4 inclusive, mounting the base on a vertical surface, which is generally radial to the door. In some cases, however, as where furniture interferes with opening of the door back against the wall, it is desirable to mount the door stop on the fiOOr or other horizohtal surface. This is illustrated in the form of Figures 5 to 8, where the base 2| is horizontal and the body 22 is bent at right angles to provide an end which will face the side of the door. Otherwise the form of Figures 5 to 8 is identical to that of Figures 1 to 4.

It will be evident that the device of the invention can be installed very simpl without the aid of a carpenter and can be used even by a child without difficulty.

In view of my invention and disclosure variations and modifications to meet individual whim or particular need will doubtless become evident to others skilled in the art, to obtain all or part of the benefits of my invention without copying the structure shown, and I, therefore, claim all such insofar as they fall within the reasonable spirit and scope of my claims,

Having thus described my invention what I claimas new and desire to secure by Letters Patent is: 1

1. In a doorstop, a support having a base and having a forward end provided with a flange and a boss at one side of the flange, a resilient bumper mounted on the support beyond the flange, an engaging hook pivoted on the boss and having an openv interior which in retracted position permits the hook to lie back of the face of the bumper and surround the bumper, the flange acting as a stop to the hook in retracted position, and the hook also havingan active position transverse to the flange, and a spring urging the hook toward retracted position.

2. In a door stop, a support having a base and having a forward end provided with a flange, and opposed bosses on opposite sides of the flange, a resilient bumper mounted on the support beyond the flange and between the opposed bosses, an engaging hook pivoted on one of the bosses and having an open interior which in retracted position permits the hook to lie back ofthe faceof the bumper and surround the bumper and the other boss, the flange acting as a stop to the hook in retracted position, and the hook also having an active position transverse to the flange, and a spring urging the hook toward retractedposition.

WILLIAM E. JEWELL, JR.

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